Black Lab Transport

I had Blacklabs ship my car from FL to PA– the car was delivered 5 days after the quoted delivery date by a third party who I hadn’t heard of (and I was not told that the vehicle would be brokered to a third party) called United Transport who would not accept checks for payment (even though Blacklabs had said that checks were acceptable). My only option was to pay my balance with a credit card, and the third party broker (United Transport) accidentally charged me over 3 times what I owed, and upon seeing their mistake, told me that they’d «send me a check in the mail».
Incidentally, I called them to give them the correct mailing address to send the check to, because they had somehow written down the wrong street address to deliver my vehicle to, and I had to meet the driver on the side of a busy street to retrieve my car.
This was an absolute nightmare– I would have just driven the car from FL to PA myself if I had known what this was going to be like!